Tektronix 4299-9 User manual
Keithley Instruments
Model 4299-9 Dual Fixed Rack-Mount Kit
28775 Aurora Road
Cleveland, Ohio 44139
1-800-935-5595
tek.com/keithley
Installation Instructions
Introduction
The Model 4299-9 Dual Fixed Rack-Mount Kit for 2U graphical instruments contains all the hardware you need
to install two adjacent 2U graphical instruments in a standard 19-inch equipment rack.
1U is a standard vertical spacing that is equal to 4.45 cm (1.75 in.).
Figure 1: Typical installation (instruments and rack are not included)
Tools required
Medium (#2) Phillips-head screwdriver
3/8-inch wrench
Flat-bladed screwdriver or cage-nut installation tool
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Model 4299-9 Dual Fixed Rack-Mount Kit Installation Instructions
1
Front-rack ear
2450-360
2
2
Shelf clip
407607800
2 3 Hinge
214548700
2
4
6-32 x 5/8 set screw
6-32x5/8SLHLSET
4
5
Support shelf
2450-363
2 6 Cage nut
FA-148
4
7
Carriage bolt
212026400
2
9
10-32 x 1/2" Phillips pan head screw
10-32X1/2PPHSEM
8
10
6-32 x 7/16" Phillips flat head screw
6-32X7/16PFH
4
11
6-32 x 1/2" Phillips pan head screw
6-32x1/2PPHSEM
4
12
10-32 Keps® washer nut
10-32KEPNUT
10
Parts list
The following figure shows the hardware that is supplied with this kit. The following table lists the hardware, part
number, and quantity.
Figure 2: Model 4299-9 Rack Mount Kit parts
Description Part number Quantity
8 10-32 x 5/8" Phillips truss head screw 10-32X5/8PHTRSH 4
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Model 4299-9 Dual Fixed Rack-Mount Kit Installation Instructions
Installation
To install two instruments using the Model 4299-9 Dual Fixed Rack-Mount Kit:
1. Review the installation precautions (on page 3
).
2. Select a location in the rack.
3. Take steps to make it easier to manipulate and install the instrument:
Clear as much space as possible around the selected rack location
If practical, remove the cabinet sides from the rack
4. Perform the installation procedure beginning with Step 1: Prepare the rack (on page 3
).
Installation precautions
Observe the following safety precautions while installing instruments.
Turn off instrument power and unplug all cables before installing an instrument in a rack.
Failure to remove power before installation may cause personal injury or death from electrical
shock.
Heat sources should be mounted away from the instrument, cabling, and accessories, with
sufficient space provided between the instrument and heat source for airflow and cooling.
To prevent damaging heat build-up and ensure specified performance, make sure there is adequate
ventilation and air flow around the instrument to ensure proper cooling. Do not cover the ventilation
holes on the sides or back of the instrument. The rear vents and both side vents must be
unobstructed to properly dissipate heat.
Mount precision equipment as low as possible in the rack. Operating temperatures are cooler lower
in the rack.
Step 1: Prepare the rack
To prepare the rack for installation:
1. Install the cage nuts on the rack rails.
2. Install the support shelf for the instrument in the rack.
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Model 4299-9 Dual Fixed Rack-Mount Kit Installation Instructions
To install the cage nuts on the rack rails:
1. Using the front-rack ear (2450-360) as a guide, mark holes for the selected installation location (four places
total, two for each rail).
2. Install the cage nuts (1) by sliding the cage nut onto the frame from the side of the rail at the hole (2) you
marked in step 1. To install a cage nut, slide the nut into the frame with the nut attached to the clip on the
inside of the frame. While sliding into the frame, pry the clip open so that the nut clears the frame and
aligns in the hole on the frame. The cage nut is secured by the screw used to install the instrument.
3. Repeat for each cage nut.
Figure 3: Install the cage nuts
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Model 4299-9 Dual Fixed Rack-Mount Kit Installation Instructions
To install the support shelves in the rack:
1. Align the first support shelf (1) with the installed cage nuts (2).
2. Secure the support shelf (1) with 10-32 x 1/2" screws (3) and nuts (4) as shown (four places).
3. Repeat steps 1 and 2 on the other side of the rack to install the second support shelf (1).
Figure 4: Install the support shelf
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